George Clooney is going to have to put his party boy ways to the side!

Sources tell RadarOnline.com that Amal is “fed up” with his drinking habits and is pleading with her A-List hubby to ditch the drinking.

The site says that the soon-to-be mama has given Clooney “an ultimatum – it’s booze or babies!”

And while there’s no denying that Amal enjoyed the casual glass of wine before becoming preggers, even the slightest sniff of alcohol now turns her green in the face.

“It’s no secret George drinks most nights, if not every night, but Amal’s told him to cut way back,” the insider dishes, adding, “the smell of booze on his breath makes her nauseous and she’s had to make a dash for the bathroom a few times.”

Radar say Amal also wants the actor to cut back because he’s a “bad boozer.” George isn’t “happy about” the ultimatum but he’s said to be complying for the time being.